How many strings make up protons, neutrons, and electrons?

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Discussion Overview

The discussion revolves around the composition of protons, neutrons, and electrons in the context of string theory, specifically addressing how many strings are thought to make up these particles. It touches on theoretical concepts, including the Heisenberg Uncertainty Principle (HUP) and the nature of particles as strings rather than points.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant suggests that according to the HUP, the number of strings making up electrons is uncertain, seeking clarification on this point.
  • Another participant asserts that the HUP relates to the uncertainty in measuring particle properties, not directly to string composition.
  • Some participants propose that in string theory, each quark is composed of a single string.
  • A participant elaborates on the HUP, explaining that it involves the trade-off between the precision of position and momentum measurements.
  • There is a question about how a string transforms into a particle, indicating a curiosity about the mechanics of string theory.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between the HUP and string theory, with some asserting that each quark is made of one string while others question the implications of the HUP on string composition. The discussion remains unresolved regarding the specifics of string counts for protons and neutrons.

Contextual Notes

There are limitations in the discussion regarding the assumptions made about the relationship between string theory and particle composition, as well as the implications of the HUP. The exact number of strings making up protons and neutrons is not established.

marshallmeyer1
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So I understand that:

Protons= 2 up quarks and a down quark... and
Neutrons= an up quark and 2 down quarks... and
Electrons are not made of quarks (so small!)

So my questions are:

1.) According the Heisenberg Uncertainty Principle, we don't know how many strings (according to string theory) make up electrons, correct? Please, someone, candor is appreciated if I'm wrong.

2.) And how many strings make up a proton, a neutron, an up quark, and a down quark?

I would imagine that if the number of strings making a an up quark were represented by U and the number of strings making up a down quark were represented by D then the formulas for strings in protons and neutrons would look like...

P=2U+D
N=2D+U

Sorry; these questions are rudimentary, and if the amount of quarks making up neutrons and protons are unknown, then I'll feel like quite a fool for asking this.
 
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Welcome to the forum!
1.) The HUP doesn't have anything to do with strings. It has to do with the uncertainty in measuring the position and momentum of a particle.
2.) In string theory, particles are not points but strings. So each quark would be composed of 1 string.
Hope this helps.
 
Each elementary particle is a single string.

The HUP has to do with repeated measurements of some particle [wave] characteristics, say position and momentum. If you repeat the same sequence of arbitrarily precise measurements on a large numbers of identically prepared particles the measurements are not all identical as would be expected classically; instead the measurements form a probability distribution of different values.
 
Just to be a little more specific, you can measure the position very precisely but the momentum will be uncertain, or you can measure the momentum very precisely but the position will be uncertain. You just cannot measure both precisely, simultaneously. http://en.wikipedia.org/wiki/Uncertainty_principle
 
tensor33 said:
2.) In string theory, particles are not points but strings. So each quark would be composed of 1 string.
Hope this helps.
How does a string turning into a particle work?
 
This thread is over 2 years old. If anyone wants to discuss this topic, please start a new thread.
 

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